Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/06/2024, 02:00

General

  • Target

    f42df0be84fd4d31bfe9d85920a80240ef40b989bd1992c78f9c7b00c711ad92.exe

  • Size

    772KB

  • MD5

    8b26e6042ded65ef4fad01cd4c111932

  • SHA1

    07e81c2b3c9c23fb584c50f8cdf4cc9711be03e7

  • SHA256

    f42df0be84fd4d31bfe9d85920a80240ef40b989bd1992c78f9c7b00c711ad92

  • SHA512

    43488ffc5c4deaa3154cfd0b7cf0b82ac818769ba60d591aea4fb36c63046b8dc18aaa9809f0bfbd703a8f9dccb343e7fd14264c22fd0a91eb45ba8b9e5cd1f6

  • SSDEEP

    12288:WAeFyvK/78pKLHQe7CAFU/mJdAjZrt9r9uI1+eariA7dl4k7YOLXLBlEpkMacsom:Wjybsd2/mLAjZZ9r9+rFROk7DpX7/+O

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.deblokhoeve.be
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Blokhoeve2490.i

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f42df0be84fd4d31bfe9d85920a80240ef40b989bd1992c78f9c7b00c711ad92.exe
    "C:\Users\Admin\AppData\Local\Temp\f42df0be84fd4d31bfe9d85920a80240ef40b989bd1992c78f9c7b00c711ad92.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fZzsWrdngckL.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2588
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fZzsWrdngckL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp477C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2656
    • C:\Users\Admin\AppData\Local\Temp\f42df0be84fd4d31bfe9d85920a80240ef40b989bd1992c78f9c7b00c711ad92.exe
      "C:\Users\Admin\AppData\Local\Temp\f42df0be84fd4d31bfe9d85920a80240ef40b989bd1992c78f9c7b00c711ad92.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2724

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp477C.tmp

          Filesize

          1KB

          MD5

          ac699b3247f132036eb612b8f46267a2

          SHA1

          58bf4d634fb2d8d720d268470ce71b2d3eeedae2

          SHA256

          56df562615f0c19450b763ccd2e0aef35a298e03d70ed7f7a96d7ef6487e37e2

          SHA512

          f5755a710ea0bcd6877f8ebc52017c8c3656e9df35e758f63a7d772718290c6bce80484b3275f7dd51ed2e4ded53c423e012c620706b9bcf42c8267029961fa7

        • memory/2276-27-0x00000000742A0000-0x000000007498E000-memory.dmp

          Filesize

          6.9MB

        • memory/2276-1-0x0000000000A50000-0x0000000000B14000-memory.dmp

          Filesize

          784KB

        • memory/2276-2-0x00000000742A0000-0x000000007498E000-memory.dmp

          Filesize

          6.9MB

        • memory/2276-3-0x0000000000210000-0x0000000000226000-memory.dmp

          Filesize

          88KB

        • memory/2276-4-0x00000000004D0000-0x00000000004DC000-memory.dmp

          Filesize

          48KB

        • memory/2276-5-0x00000000004F0000-0x0000000000500000-memory.dmp

          Filesize

          64KB

        • memory/2276-6-0x0000000004DD0000-0x0000000004E54000-memory.dmp

          Filesize

          528KB

        • memory/2276-0-0x00000000742AE000-0x00000000742AF000-memory.dmp

          Filesize

          4KB

        • memory/2724-14-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2724-24-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2724-26-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2724-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2724-20-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2724-18-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2724-16-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2724-23-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB